answers already graded A+
What is the difference between an inference and a prediction? -
ANSWER inference is based on observation; prediction is a
hypothesis
What are the differences between hypothesis, theory and law? -
ANSWER hypothesis is an educated guess; theory is based one
experiments; law is proven the same over and over
What is the difference between an independent and dependent
variable? - ANSWER independent variable is a thing you test or
, change; dependent variable is the thing you measure
Interpret graphs. Which axis has the independent variable? Which
axis has the dependent variable?
When do you use a bar graph? A line graph? A pie graph? -
ANSWER independent is x axis; dependent variable is y axis.
line graphs are used for change over time, a pie graph for parts of a
whole
How do you determine the magnification of the field of view for a
microscope? - ANSWER power of lens + power of objective =
magnification
What happens to the diameter of the field of view when you change
from low to high power? - ANSWER the diameter become smaller
How do you estimate the size of a cell or cell structure when using a
microscope? - ANSWER consider magnification and original size
What do you adjust first on a microscope? What you then adjust when
on the highest power? - ANSWER Course adjustment; Fine
adjustment
You have measured the rate at which a fish breaths at various